The naming of the black cat ¨Pluto¨aggrandizes the cat to the level of the Greek god of the underworld (i.e. Hell) and, thus, personifies him. Further, the narrator declares that his relationship with Pluto is superior to the ¨paltry friendship and gossamer fidelity of mere Man.¨Earlier in the narrative, also, the narrator elevates the relationship of man and animal as he reflects,

There is something in the unselfish and self-sacrificing love of a brute, which goes directly to the heart of him who has had frequent occasion to test the paltry friendship and gossamer fidelity of mere Man.

In another example of personification, the narrator alludes to canines as he comments on the joy of a relationship with a ¨sagacious dog.¨ The use of sagacious, or wise, is certainly an example of attributing the qualities of a human to that of an animal.